/Engine/Source/Editor/Kismet/Public/BlueprintEditor.h
Pulls out the pins to use as a template when collapsing a selection to a function with a custom event involved.
void ExtractEventTemplateForFunction ( class [UK2Node_CustomEvent](API\Editor\BlueprintGraph\UK2Node_CustomEvent) * InCustomEvent, [UEdGraphNode](API\Runtime\Engine\EdGraph\UEdGraphNode) * InGatewayNode, class [UK2Node_EditablePinBase](API\Editor\BlueprintGraph\UK2Node_EditablePinBase) * InEntryNode, class [UK2Node_EditablePinBase](API\Editor\BlueprintGraph\UK2Node_EditablePinBase) * InResultNode, [TSet](API\Runtime\Core\Containers\TSet)< [UEdGraphNode](API\Runtime\Engine\EdGraph\UEdGraphNode) * > & InCollapsableNodes )